2. If you have built in speakers, or your external speakers or headset are connected and turned on, check that your audio is not set to mute, and adjust the volume:

3. Check the volume setting on the video message. The player which opens when you view a video has a volume adjustment, be sure it is not set to minimum, and that the player is not set to mute.

4. Confirm whether the video has sound. Your video message may not have any sound recorded. If you are able to hear sound from other videos, or from other applications, it may be that the message did not have any audio recorded.